AWS IAM Policies Cheat Sheet

Least privilege, policy simulator

Last Updated: November 21, 2025

Elements

Element Purpose
Action Allow/Deny APIs
Resource ARN scope
Condition Limit context

Commands

aws iam create-policy
Define policy
aws iam attach-role-policy
Grant
aws iam simulate-custom-policy
Test

Guidance

Start with deny, add allow statements, and review access regularly.

💡 Pro Tip: Attach policies to roles, simulate them, and audit usage.
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